# Relationship history for MSHA mine 4609112

Current hierarchy: **William V  Whiting → RRC-1 LLC → Rocklick Preparation Plant -RRC-1**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** RRC-1 LLC → Rocklick Preparation Plant -RRC-1; 2005-07-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** William V  Whiting et al → Rocklick Preparation Plant -RRC-1; 2005-07-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William V  Whiting et al → RRC-1 LLC; 2005-07-19 to current/open; source msha-controller-operator-history